CN213035644U - Motor reducer assembly suspension structure for electric light truck - Google Patents

Abstract

The utility model relates to a motor reducer assembly suspension structure for electric light truck, which is characterized in that the suspension structure comprises a motor end support assembly and a reducer end support assembly, the motor end support assembly comprises an annular steel plate and a pair of angle supports, one side of the annular steel plate is fixedly connected with an end cover at the motor end, and the other side of the annular steel plate is fixedly connected with a motor end pocket beam through the angle supports and a motor suspension soft cushion; the reducer end support assembly comprises a reducer end support which is horizontally placed, the upper surface of the reducer end support is fixedly connected with the reducer end, and the lower surface of the reducer end support is fixedly connected with the reducer end pocket beam through a reducer suspension cushion. The utility model discloses a slope installation and horizontal installation dual mode can satisfy novel driving motor reduction gear assembly system when exporting the big moment of torsion, guarantees its due antitorque spacing ability, rigidity and stability, still compromises the life problem of suspension cushion simultaneously, guarantees to put in order the car and possesses good NVH for a long time.

Description

Motor reducer assembly suspension structure for electric light truck

Technical Field

The utility model relates to a cargo handling platform, especially an electronic motor reducer assembly suspension structure for light truck belongs to vehicle lift loading platform technical field.

Background

In the pure electric light truck, a drive motor is suspended and used for connecting a power assembly and a frame part, and the drive motor mainly plays a great role in supporting the power assembly, reducing the influence of the vibration of the power assembly on the whole truck, limiting the shaking amount of the power assembly and playing a great role in the NVH performance of the whole truck. Most of the traditional drive motor systems on the market are directly driven by large-torque motors with the highest rotating speed within 4000 rpm. The traditional driving motor system has large mass and volume, the suspension of the motor is generally arranged on two sides of the motor, and four suspension brackets are generally required for fixation. The novel driving motor system adopts an assembly driving scheme that the highest rotating speed is higher than 10000rmp, and a small-torque motor drives a single-stage speed reducer, and the assembly is reduced in quality and volume, so that the novel driving motor system is the development direction of the future driving motor system. The driving motor and the speed reducer are generally in gear transmission, so that an output shaft of the speed reducer end and an output shaft of the motor cannot be kept in the same straight line, generally, the output shaft is left-right, so that the suspension hole positions of the high-speed motor are also generally arranged at the motor end and the end cover side, and the suspension hole positions of the speed reducer end are generally arranged at the lower part of the suspension hole positions. At present, the suspension cushion is mostly installed in the market by adopting a horizontal installation mode or an inclined installation mode.

The obliquely-installed suspension cushion can form a more stable triangular support structure, but the suspension cushion is always under the action of shearing force generated by the self weight of the motor when the motor does not work, so that the service life of the suspension cushion is influenced; horizontal installation suspension cushion, when the motor is out of work, does not receive the shearing force, nevertheless can not form the triangular supports, and stability is relatively poor, and the later stage causes the block rubber displacement too big easily, leads to a series of problems such as transmission efficiency decline, vibration volume is big, whole car NVH level descends.

Disclosure of Invention

The utility model aims at providing a suspension structure of novel driving motor reduction gear assembly that electronic light truck used, this suspension structure adopt slope installation and horizontal installation dual mode simultaneously, can satisfy novel driving motor reduction gear assembly system when exporting big moment of torsion, guarantee its due antitorque spacing ability, rigidity and stability, still compromise the life problem of suspension cushion simultaneously, guarantee that whole car possesses good NVH for a long time.

In order to solve the above problems, the utility model adopts the following technical scheme:

a motor reducer assembly suspension structure for an electric light truck is characterized by comprising:

the motor end support assembly is used for fixedly connecting a motor end of the motor reducer assembly with a motor end pocket beam and structurally comprises an annular steel plate and a pair of angle supports, wherein one side of the annular steel plate is fixedly connected with an end cover of the motor end, and the other side of the annular steel plate is fixedly connected with the motor end pocket beam through the pair of angle supports and a pair of motor suspension cushions;

reduction gear end support assembly for link firmly the reduction gear end of motor reduction gear assembly and reduction gear end pocket roof beam, its structure includes the reduction gear end support that the level was placed, the upper surface and the reduction gear end fixed connection of reduction gear end support, the lower surface of reduction gear end support is via reduction gear suspension cushion and reduction gear end pocket roof beam fixed connection.

A plurality of motor side suspension hole positions are formed in the circumferential direction of the annular steel plate so as to be connected with a motor in a fastening mode through bolts; a pair of angle supports are welded on the annular steel plate at a preset inclination angle, and correspondingly, the motor suspension cushion matched with the angle supports has the same inclination angle which is used for being matched with the inclined plane part of the electric machine end pocket beam.

The angle-shaped support, the motor suspension cushion and the motor end pocket beam are fixedly connected together through bolts.

The speed reducer end support is a steel plate, and a speed reducer suspension hole site for connecting with the speed reducer end and two bolt hole sites for connecting with the speed reducer suspension cushion are arranged on the surface of the steel plate.

Reinforcing ribs are welded on the back sides of the motor end pocket beam and the speed reducer end pocket beam, and the reinforcing ribs can play a role in enhancing the rigidity of the suspension system.

The utility model discloses an electronic motor reducer assembly suspension structure for light truck adopts four points, and the fixed mode of suspension that level, slope combine has the advantage of two kinds of mounting means concurrently, can satisfy novel driving motor reducer assembly system when exporting big moment of torsion, guarantees its due antitorque spacing ability, rigidity and stability, still compromises the life problem of suspension cushion simultaneously, guarantees that whole car possesses good NVH for a long time.

Drawings

FIG. 1 is a schematic view of an installation of an annular steel plate and an angular support in a motor end bracket assembly according to a first embodiment;

FIG. 2 is a schematic view of mounting a motor suspension cushion and a motor end pocket beam in the motor end bracket assembly according to the first embodiment;

FIG. 3 is a schematic view of a motor end fixing bracket assembly according to the first embodiment;

FIG. 4 is a schematic view of a reducer end bracket assembly according to the first embodiment;

FIG. 5 is a schematic view illustrating an installation of a suspension cushion and an end pocket beam of the decelerator in the end bracket assembly of the decelerator according to the first embodiment;

FIG. 6 is a schematic view of a stiffener structure at the back side of a retarder end pocket beam according to a first embodiment;

FIG. 7 is a schematic view of a reducer end bracket assembly according to a first embodiment;

FIG. 8 is a schematic view of the suspension structure of the motor reducer assembly for the electric light truck of the present invention;

FIG. 9 is a view showing a state of the suspension structure of the motor reducer assembly for the electric light truck according to the present invention;

in the figure, 1, an angular support, 2, an annular steel plate, 3, a motor side suspension fixing hole position, 4, a motor end pocket beam, 51, a motor suspension cushion, 52, a speed reducer suspension cushion, 6, a bolt, 7, a speed reducer end support, 8, a speed reducer suspension hole position, 9, a bolt hole position, 10, a speed reducer end pocket beam, 11, a reinforcing rib, 12, a motor speed reducer assembly, 13, a motor side suspension hole position, 14 and a speed reducer side suspension hole position.

Detailed Description

The technical solutions of the embodiments of the present application are clearly and completely described below with reference to the drawings of the present application, and the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments.

Example one

The embodiment provides a motor reducer assembly suspension structure for an electric light truck, which adopts a four-point, horizontal and oblique combined suspension fixing mode. Have the advantage of two kinds of mounting means concurrently, can satisfy novel driving motor reduction gear assembly system when exporting big moment of torsion, guarantee its due antitorque spacing ability, rigidity and stability, still compromise the life problem of suspension cushion simultaneously, guarantee that whole car possesses good NVH for a long time.

The suspension structure of the embodiment comprises a motor end support assembly and a reducer end support assembly, wherein the motor end support assembly is used for fixedly connecting a motor end of a motor reducer assembly 12 with a motor end pocket beam 4, the structure comprises an annular steel plate 2 and a pair of angle supports 1, one side of the annular steel plate 2 is fixedly connected with an end cover of the motor end, and the other side of the annular steel plate 2 is fixedly connected with the motor end pocket beam 4 through the pair of angle supports 1 and a pair of motor suspension cushions 51; reduction gear end support assembly is used for linking firmly the reduction gear end of motor reduction gear assembly 12 and reduction gear end pocket roof beam 10, and its structure includes reduction gear end support 7 that the level was placed, the upper surface and the reduction gear end fixed connection of reduction gear end support 7, the lower surface of reduction gear end support 7 is via reduction gear suspension cushion 52 and reduction gear end pocket roof beam 10 fixed connection.

The connection and assembly relationship between the parts of the two bracket assemblies is described as follows:

as shown in fig. 1, the motor end bracket assembly comprises an annular steel plate 2 and two angle-shaped supporting seats 1 which are welded together, wherein the annular steel plate 2 is provided with a plurality of motor side suspension fixing hole positions 3 so as to be firmly connected with a motor by using bolts.

As shown in fig. 2, two motor suspension cushions 51 are installed on the motor end pocket beam 4 with bolts obliquely. The motion stability of the system is ensured, and the torsion resistance and the limiting capacity of the suspension system are enhanced.

As shown in fig. 3, one side of the ring-shaped steel plate 2 is mounted to the motor end pocket beam 4 by means of the bolts 6 of the motor suspension mat 51.

As shown in fig. 4, the reducer end bracket 7 is formed by bending a steel plate, and is provided with a plurality of reducer suspension holes 8 and two bolt holes 9 connected with the reducer suspension cushion.

As shown in fig. 5 and 6, two speed reducer suspension cushions 52 are horizontally mounted on the speed reducer end pocket beam 10 by bolts, and only bear vertical downward pressure when the motor is static without being affected by shearing force, so that the service life of the suspension cushions is prolonged, the aging speed of the suspension cushions is reduced, the buffering and damping effects are maintained, and the whole vehicle can maintain good NVH performance all the time. Wherein, two reinforcing ribs 11 are welded at the back of the reducer pocket beam 10, which plays a role in enhancing the rigidity of the suspension system. This two rib 11 configuration is also present at the back of the motor end pocket 4.

As shown in fig. 7, the decelerator end bracket 7 is mounted to the decelerator end pocket bar 10 by means of the bolt 6 on the decelerator suspension pad 52.

As shown in fig. 8 and 9, the motor reducer assembly 12 is finally fastened to the motor end bracket and the reducer end bracket through the motor side suspension hole site 13 and the reducer side suspension hole site 14 and bolts. The reducer end pocket beam 10 is fastened to the outer side of the frame through bolt connection, and the motor end pocket beam 4 is pressed on the lower wing surface of the inner side of the frame through bolt connection, so that the integral suspension installation of the drive motor reducer system is completed.

Although the suspension of the motor reducer assembly of the embodiment uses four suspension cushions as four-point suspension, the actual connection part of the motor reducer assembly and the motor reducer assembly only uses two support assemblies of the motor end support and the reducer end support to integrally support, the whole stress condition of the motor reducer assembly and the suspension cushions is better, and the connection is firmer, more stable and more reliable.

The utility model discloses a mode that suspension cushion slope installation and horizontal installation combined together can exert the respective advantage of two kinds of mounting means, both increases suspension cushion life, can provide better suspension stability and antitorque spacing ability again.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims (5)

1. The utility model provides an electronic motor reducer assembly suspension structure for light truck which characterized in that has:

the motor end support assembly is used for fixedly connecting a motor end of the motor reducer assembly with a motor end pocket beam and structurally comprises an annular steel plate and a pair of angle supports, wherein one side of the annular steel plate is fixedly connected with an end cover of the motor end, and the other side of the annular steel plate is fixedly connected with the motor end pocket beam through the pair of angle supports and a pair of motor suspension cushions;

reduction gear end support assembly for link firmly the reduction gear end of motor reduction gear assembly and reduction gear end pocket roof beam, its structure includes the reduction gear end support that the level was placed, the upper surface and the reduction gear end fixed connection of reduction gear end support, the lower surface of reduction gear end support is via reduction gear suspension cushion and reduction gear end pocket roof beam fixed connection.

2. The motor reducer assembly suspension structure for electric light trucks according to claim 1,

a plurality of motor side suspension hole positions are formed in the circumferential direction of the annular steel plate so as to be connected with a motor in a fastening mode through bolts; a pair of angle supports are welded on the annular steel plate at a preset inclination angle, and correspondingly, the motor suspension cushion matched with the angle supports has the same inclination angle which is used for being matched with the inclined plane part of the electric machine end pocket beam.

3. The motor reducer assembly suspension structure for electric light trucks according to claim 1,

the angle-shaped support, the motor suspension cushion and the motor end pocket beam are fixedly connected together through bolts.

4. The motor reducer assembly suspension structure for electric light trucks according to claim 1,

the speed reducer end support is a steel plate, and a speed reducer suspension hole site for connecting with the speed reducer end and two bolt hole sites for connecting with the speed reducer suspension cushion are arranged on the surface of the steel plate.

5. The motor reducer assembly suspension structure for electric light trucks according to claim 1,

reinforcing ribs are welded on the back sides of the motor end pocket beam and the speed reducer end pocket beam, and the reinforcing ribs can play a role in enhancing the rigidity of the suspension system.

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